제출 #14715

#제출 시각아이디문제언어결과실행 시간메모리
14715baneling100정전 (OJUZ10_blackout)C++98
50 / 100
53 ms1668 KiB
#include <stdio.h>
#include <algorithm>
#define N_MAX 150000
#define INF 0x7fffffff

using namespace std;

int N, L, Light[N_MAX+1], Res;

int main(void) {

    int i;

    scanf("%d %d",&N,&L);
    for(i=1 ; i<=N ; i++) scanf("%d",&Light[i]);
    sort(Light+1,Light+N+1);
    if(Light[1]-Light[2]+2*L>0) Res=Light[1]-Light[2]+2*L;
    for(i=3 ; i<=N ; i++) {
        if(Light[i-2]+L<Light[i]-L) {
            if(Light[i-1]-Light[i]+2*L>0) Res+=Light[i-1]-Light[i]+2*L;
        }
        else Res+=Light[i-1]-Light[i-2];
    }
    printf("%d",Res);

    return 0;
}
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